The INA791x is a voltage output, current sense amplifier with an integrated shunt resistor of 400µΩ. The INA791x is designed to monitor bidirectional current over a common-mode range of –4V to 110V, independent of the supply voltage. Adjustable gain option assists in optimizing the system dynamic range. The integration of the Kelvin connected shunt resistor with a zero-drift chopped amplifier provides calibration equivalent measurement accuracy, ultra-low temperature drift performance of ±35ppm/°C, and an optimized layout for the sensing resistor.
This device operates from a single 2.7V to 5.5V power supply, drawing a maximum of 4.25mA of supply current. All versions are specified over the extended operating temperature range (–40°C to +125°C), and are available in a 15-pin VQFN package.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | INA791x –4V to 110V, Bidirectional, Ultra-Precise, High Bandwidth Current Sense Amplifier With 75A EZShunt Technology datasheet (Rev. A) | PDF | HTML | Jul 29, 2025 |
| Functional safety information | INA79X-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | Dec 5, 2025 | |
| Application note | Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers | PDF | HTML | Nov 18, 2024 |
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The INA79xx evaluation module (EVM) features the INA790x -4V to 110V, bidirectional, ultra-precise, current-sense amplifier with 75A EZShunt™ technology. The INA79x also features enhanced PWM rejection. The EVM provides a platform that facilitates gain and reference voltage configuration.
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VSON (DEK) | 15 | Ultra Librarian |
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